18 volt batteries and chargers

[fiberoptik]

With the technology today, why can’t they make a charger that turns off when the battery is fully charged ? When I am done working I want to put my tools away and not want to think about then until the next time I use them. Nor do I want to wait for a battery to charge before I can start work. There were flashlights mounted on the wall, always charging ready to go when needed.

The better to sell you more battery packs, silly


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[poorman]

Here is what my Ryobi battery manual says about storage

https://manuals.plus/ryobi/18-volt-l...ry-pack-manual
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For battery pack storage longer than 30 days:

Store the battery pack where the temperature is below 80°F and away from moisture.
Store battery packs in a 30%-50% charged condition.
Every six months of storage, charge the pack as normal.

[MaryB]

With the technology today, why can’t they make a charger that turns off when the battery is fully charged ? When I am done working I want to put my tools away and not want to think about then until the next time I use them. Nor do I want to wait for a battery to charge before I can start work. There were flashlights mounted on the wall, always charging ready to go when needed.

They are off... internal chemistry causes leakage current. All batteries suffer from it.

[WRideout]

I take mine off the charger when they're fully charged.
All of 'em. Tools, shavers, whatever.
If I haven't used them for a long while, I plug them back in for a little while.

After the shop I used to work for burned down from a fire started one night at the charging station
where electric screwdrivers were all plugged in--- I don't trust them to behave while I'm not around and close to them.

I keep my drill-driver and charger out in my shed. Just for safety sake I unplug everything before I close up the shop.

Wayne

[Finster101]

Many stories and thoughts on the battery situation. I can tell you that before I retired from being a dealership tech the shop was full of batteries and chargers of many different makes and voltages that were never unplugged and at times on a charger for a week or so because we all had extra so not to have a tool stop mid job with no battery. I never saw one explode or burn and I am talking quite a few years here. From Nicad's to lithium's not a single issue.

[Handloader109]

Many stories and thoughts on the battery situation. I can tell you that before I retired from being a dealership tech the shop was full of batteries and chargers of many different makes and voltages that were never unplugged and at times on a charger for a week or so because we all had extra so not to have a tool stop mid job with no battery. I never saw one explode or burn and I am talking quite a few years here. From Nicad's to lithium's not a single issue.

And? You and the shop were lucky. Nothing more. They all won't go down in flames, but you only need ONE. Guy on another forum (tractor) lost well over $100,000 building and to him priceless tools and other mementos stored in his shop. Battery did it. Building was less than a year old. Unplug them at least.

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[Bmi48219]

A pallet of lithium batteries caused a fire in the cargo hold and took down UPS Airline Flight 6 in 2010. The batteries weren’t anywhere near a charger.

[elmacgyver0]

Those EV cars with their lithium batteries are a really great idea, aren't they?
They even make charging stations for your garage.
They kind of scare me, think I'll just stick to my old infernal combustion engines.

[Winger Ed.]

A pallet of lithium batteries caused a fire in the cargo hold and took down UPS Airline Flight 6 in 2010. The batteries weren’t anywhere near a charger.

Catching fire is pretty rare considering how many of them are out there.
However-- Not taking precautions with them is a bet where you have little to gain, but potentially a lot to lose.

It's enough of a concern that the Post Office won't take them if you want to mail something that has one.

[dverna]

With the technology today, why can’t they make a charger that turns off when the battery is fully charged ? When I am done working I want to put my tools away and not want to think about then until the next time I use them. Nor do I want to wait for a battery to charge before I can start work. There were flashlights mounted on the wall, always charging ready to go when needed.

Buy a timer. My Dewait batteries charge in about an hour.

[GregLaROCHE]

So should we not leave cell phones plugged in either?

[Lloyd Smale]

So should we not leave cell phones plugged in either?

the one my wife MADE me get has been sitting on the counter with the charge cord hooked to it except one day she made me take it to camp for a year and a half and id about bet its still sitting there a year from now plugged in

[dverna]

So should we not leave cell phones plugged in either?

I rarely leave my tablet or cell phone plugged in. Frankly, I am not sure about it, and am a bit paranoid. Maybe it is OK 99.99% of the time but why risk it if it is easy to avoid?

[Bmi48219]

So should we not leave cell phones plugged in either?

That’s a good point. Certainly not by plan but when my cell phone and tablet are charging, they’re on the nightstand next to where I’m asleep. I don’t know if these devices have lithium batteries. I’ll have to look into that.
I know for awhile US airlines banned certain models of cell phones on their flights, I believe because those phones had a propensity to ignite.

[MaryB]

the one my wife MADE me get has been sitting on the counter with the charge cord hooked to it except one day she made me take it to camp for a year and a half and id about bet its still sitting there a year from now plugged in

This battery came out of a Motorola phone, it was at 290 degrees and on the way to a fire when I unplugged the phone. It split the phone open!

[firefly1957]

I do not leave batteries on the charger longer then to charge there is always a small drain of power to a plugged in charger and a risk of fire .

I have used rechargeable AA batteries for years and have had two over heat and damage the chargers one was Ni-cad the other a early hybrid high output that may have been Lithium . Thankfully no fires.

I have often wondered just how much current we put in batteries for what we get back in use I saw one report on electric cars that showed 30% of charging power was waste that would never be used to run the vehicle. In other words for every 130 Kilowatt hours into the battery only 100 KW hours could be utilized . That was reported in the last couple years so I doubt it has changed .